Youtube – Why only some YouTube videos show thumbnails in the time bar

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Why do some YouTube videos show a thumbnail when you hover the mouse cursor over the time bar, while others don't?

Examples:

This shows thumbnails. This doesn't show.

This is an older video and has thumbnails. This was published yesterday and doesn't have thumbnails.

Best Answer

Had you said previews on the progress bar (or even had uploaded images) I might not have misunderstood first time around. IF that is what you mean:

The progress bar preview works on some videos and doesn't work on others. There is no explanation for it, nor can you fix it.

from YouTube Help Forum might be of interest (though I'm not convinced correct).

Related Solutions

Youtube – How to get a video-entry’s RSS “description” via the API

import gdata.youtube
import gdata.alt.appengine
import gdata.youtube.service

class Index(webapp.RequestHandler):
    def get(self):
        client = gdata.youtube.service.YouTubeService()
        feed = client.GetRecentlyFeaturedVideoFeed()
        gdata.alt.appengine.run_on_appengine(client)

        self.response.out.write('<html><body>')
        for entry in feed.entry:
            self.response.out.write('<div>%s</div>' %entry.media.description)
        self.response.out.write('</html></body>')

If you are using a rendering template like Django, instead of self response call the rendering function of the template and pass the variable feed, in your html file call Django variables like this:

replace the self.response with:

templates.render(self, 'home.html',
                    feed=feed,
                 )

and add to your html:

{% for entry in feed.entry %}
    <div>{{entry.media.description}}</div>
{% endfor %}

YouTube – Google Removed Stop Download Command from Context Menu

I came up with some solutions and they seem to work at the moment:

First, the easiest one. Use the bookmarklet I have mentioned here. When you click the bookmark, YouTube video will stop.
If you need a button, use this userscript.
I recently created my own Google Chrome Extension. If you are a Chrome user, you can make use of this extension instead of the userscript : https://chrome.google.com/webstore/detail/stop-video-download-for-y/mdbhjcdmfdhjgpcomkahjbkbcgpjoehi/

Best Answer

Related Solutions

Youtube – How to get a video-entry’s RSS “description” via the API

YouTube – Google Removed Stop Download Command from Context Menu

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